Sybil

Daughter of the leader of the Red Scholars, Sybil has grown up in the order and has traveled the world to gather knowledge of all kinds. Sybil is trained in offensive magic, but she also has abilities in healing, and is able to heal the Hero whenever she travels with them.

Sybil is a possible romance for a male hero.

Romance
In order to pursue a romance with Sybil, certain steps must be taken. And near the end game (spoilers) kill the creator concubine with Sybil in your party. You don't need to pick Sybil during the final fellowship huddle, but you must go back later and bring her with when you kill the creator concubine.
 * Complete On Safari with Sybil,
 * Complete Orphan and choose the apologetic dialogue option,
 * Complete The Icy Library,
 * Complete Timid Request after you recruit Marthas,
 * Complete A Damsel in Distress,
 * You must not allow the demon to possess you, and retain your humanity.